Fluoxetine, N-methyl-3-phenyl-3-[4-(trifluoromethyl) phenoxy]-propan-1-amine hydrochloride, is in a class of drugs called selective serotonin reuptake inhibitors (SSRI). Fluoxetine affects chemicals in the brain that may become unbalanced and cause depression or mood disturbances, eating disorders, or obsessive or compulsive symptoms. To my knowledge, this is the first report of a depressive patient who did not experience any seminal emission side effects during the first period of the drug’s use, but did experience involuntary seminal emission during defecation when taking Fluoxetine a year later.